S-8253A SII [Seiko Instruments Inc], S-8253A Datasheet - Page 12

• Manufacturer Part Number: S-8253A
• Description: BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
• Manufacturer: SII [Seiko Instruments Inc]

12
BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
S-8253A/B Series
6. Resistance between VMP and VDD, Resistance between VMP and VSS
7. CTL Pin Input Voltage “H”
8. CTL Pin Input Voltage “L”
9. CTL Pin Current “H”, CTL Pin Current “L”
(Test Condition 6, Test Circuit 2)
Confirm that V1 = V2 = 3.5 V (S-8253A Series), V1 = V2 = V3 = 3.5 V (S-8253B Series), S1 = ON, and S2 = OFF (this
status is referred to as the initial status).
6. 1 Resistance between VMP and VDD (R
6. 2 Resistance between VMP and VSS (R
(Test Condition 7, Test Circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253A Series), V1 = V2 = V3 = 3.5 V (S-8253B Series), V4 = 0 V, V5 = 0 V, and the COP
pin and DOP pin are low (this status is referred to as the initial status).
7. 1 CTL Pin Input Voltage “H” (V
(Test condition 7, Test circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253A Series), V1 = V2 = V3 = 3.5 V (S-8253B Series), V4 = 0 V, V5 = 0.35 V, and the
COP pin and DOP pin are high (this status is referred to as the initial status).
8. 1 CTL Pin Input Voltage “L” (V
(Test Condition 8, Test Circuit 3)
9. 1 CTL Pin Current “H” (I
The resistance between VMP and VDD (R
S2 are switched to OFF and ON, respectively, starting at the initial status.
The resistance between VMP and VSS (R
= 1.8 V (S-8253A Series) or V1 = V2 = V3 = 1.8 V (S-8253B Series) are set starting at the initial status.
The CTL pin input voltage “H” (V
after the voltage of V4 has been gradually increased starting at the initial status.
The CTL pin input voltage “L” (V
the voltage of V4 has been gradually decreased starting at the initial status.
The CTL pin current “H” (I
V1 = V2 = V3 = 3.5 V (S-8253B Series), and S3 = ON, S4 = OFF. The CTL current “L” (I
through the CTL pin when S3 = OFF and S4 = ON after that.
S-8253A Series : R
S-8253B Series : R
S-8253A Series : R
S-8253B Series : R
VMD
VMD
VMS
VMS
CTLH
CTLH
= (V1 + V2) / I
= (V1 + V2 + V3) / I
= (V1 + V2) / I
= (V1 + V2 + V3) / I
), CTL Pin Current “L” (I
) is the current that flows through the CTL pin when V1 = V2 = 3.5 V (S-8253A Series),
CTLL
CTLL
CTLH
CTLH
) is the voltage of V4 when the voltages of the COP pin and DOP pin are low after
)
)
) is the voltage of V4 when the voltages of the COP pin and DOP pin are high
Seiko Instruments Inc.
VMS
VMD
VMS
VMD
VMD
VMS
) is determined based on the current of the VMP pin (I
)
) is determined based on the current of the VMP pin (I
)
VMS
VMD
CTLL
)
CTLL
) is the current that flows
VMS
VMD
Rev.3.7
) after V1 = V2
) after S1 and
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